Raven = ->
Raven::quote = -> console.log "我是原型"
raven1 = new Raven()
raven1.quote()

Raven::quote = -> console.log "我是修改后的原型"
raven1.quote()

raven2 = new Raven()
raven2.quote = -> console.log "我是raven2自己定义的函数"
raven2.quote()

console.log raven1.hasOwnProperty('quote')
console.log raven2.hasOwnProperty('quote')